I posted to the forum earlier in the week about my 115 1992 Yamaha, I'm more confused than ever, so I thought I'd retell the whole story to see if anyone knows what may be happening.<br /><br />I trailed my newly bought used boat from VA to NH for a two week vacation (or so I thought).<br /><br />Boat worked well for two-three days, then became troublesome to start. After a start, it worked well all day until the next morning, when it was again hard to start.<br /><br />After two days of flooding and very difficult (1 hr) starts, it finally wouldn't start at all and drained the battery from trying.<br /><br />I brought it to a Yamaha dealer in RI, who said that the problem was a bad CDI. He replaced the CDI with a used one, which was only 1y old. He charged me 270 parts + 180 labor to replace the CDI.<br /><br />I took the boat out, and it started fine, but at around 4,000 RPMs to about 5,000 towing the kid on a tube, it would stutter, felt like it was skipping or misfiring on a cylender.<br /><br />I called the dealer, and he said that the carb had a plugged jet or high speed valve. Took it back to the mechanic, and he re-built the carbs, but noted that they were clean, so he wasn't sure what the problem was... Charged me another hours labor.<br /><br />I put the boat in the water again, and it does exactly the same thing, stutters at around 4000 rpms. <br /><br />I have to leave the area and go back to VA and back to work. <br /><br />I'm very afraid that the CDI unit he replaced is causing the problem but he swears up and down that it isn't...<br /><br />Has anyone run into this problem before, and do you think it could be a bad CDI? <br /><br />Thanks in advance,<br /><br />Brendan
. there is a good tech in portsmouth. troy marine.<br /> tell him a guy in kitty hawk that used to work with him at the dock box says hi<br />he will take care of ya.